Adds UI to display who is logged in and provide option of logging out

Adds global AccountInformation class
Minor code cleanup
If on iPhone, only allow portrait view in Login UI
Doesn't use the split view controller if running on iPhone
Completes UI modifications to support universal deployment
Adds missing constraint to set top for scanned items table on iPad
Checks that the barcode scanner frame is correct after orientation change
update for beta5 breaking changes